Fig. 3
From: Age- and environment-dependent changes in chemical defences of larval and post-metamorphic toads
Total bufadienolide quantity of common toad hatchlings, tadpoles and post-metamorphs (N = 198). Asterisks above boxplots represent pairwise comparisons between food level treatments; groups marked with * (P < 0.05) and ** (P = 0.01) differ significantly based on linear contrasts corrected for false discovery rate. Food level treatment was applied after developmental stage 19 (see Methods). Statistics for pairwise comparisons can be found in Additional file 1: Tables S2 and S3